Home / 66,142,724.58-91,282,067.10-39,682,070.64

Finding the Fourth Proportional to 66,142,724.58, 91,282,067.10 and 39,682,070.64

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Solution

The fourth proportional to 66,142,724.58, 91,282,067.10 and 39,682,070.64 is: 54,764,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142,724.58 : 91,282,067.10 = 39,682,070.64 : x
  2. Step 2: Convert to fraction form
    66,142,724.58/91,282,067.10 = 39,682,070.64/x
  3. Step 3: Cross multiply
    66,142,724.58x = 91,282,067.10 × 39,682,070.64
  4. Step 4: Simplify right side
    66,142,724.58x = 3,622,261,434,827,420
  5. Step 5: Solve for x
    x = 3,622,261,434,827,420/66,142,724.58
  6. Step 6: Final answer
    x = 54,764,321.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.